International Journal of Photoenergy

International Journal of Photoenergy / 2004 / Article

Open Access

Volume 6 |Article ID 948312 | https://doi.org/10.1155/S1110662X04000273

J. Berthet, S. Delbaere, V. Lokshin, A. Samat, J. C. Micheau, G. Vermeersch, "NMR studies of the polyphotochromic behaviour of biphotochromic compounds", International Journal of Photoenergy, vol. 6, Article ID 948312, 6 pages, 2004. https://doi.org/10.1155/S1110662X04000273

NMR studies of the polyphotochromic behaviour of biphotochromic compounds

Abstract

NMR spectroscopy has been used to investigate the photochromism of four biphotochromic molecules in both the spirooxazine and naphthopyran families. The thermal evolution of photoproducts and their structural identification made it possible to observe polyphotochromic behaviour: photocoloration, thermal bleaching, photo and thermal isomerisation, photoelectrocyclisation and thermochromism.

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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